Kamon carved a long chashaku with a large scoop to go with a Korean hirajawan (flat bowl) – as large as 15 me of tatami (about 22 cm) – called “Mizu’umi” (Lake). He named the chashaku “Seta” – after the Seta-no-Karahashi Bridge over Seta River that flows out of Lake Biwa. It became knows as the “Kamon-style” chashaku.